Tag: Developers

Everything you need to know about Full Stack Developer

by uttam.ruby programming / Uncategorized / Web DevelopmentLeave a Comment on Everything you need to know about Full Stack Developer

Introduction

The trade definition of a Full Stack Developer is an engineer who will work on totally different levels of an application stack. The term stack refers to the mixture of elements and tools that frame the appliance. the most objective of the full-stack engineer is to stay each part of the system running smoothly.

What is Full Stack Developer?

Full-stack web developers have the ability to design complete web applications and websites. They work on the frontend, backend, database, and debugging of web applications or websites.

Full Stack Developer is an engineer who works on each the client-side and server-side of the software system application. This kind of developer works on the complete Stack of a software system application meaning Front end development, Back end development, Database, Server, API, and version controlling systems. Hence, the name Full Stack Developer.

Why Do You Need a Full-Stack Developer?
Here are some reasons why you should need a full stack development professional:

  • A full-stack developer helps you to keep every part of the system running smoothly.
  • If one person plays different roles, it saves your company’s personnel, infrastructure, and operational cost.
  • Full-stack developers can provide help to everyone in the team and greatly reduce the time and technical costs of team communication.

A Full Stack Developer does:
As a full-stack developer, you may be involved in these activities:

Translate user requirements into the overall architecture and implementation of new systems. Manage Project and coordinate with the Client. Write backend code in Ruby, Python, Java, PHP languages, Writing optimized front-end code HTML and JavaScript, Understand, create and debug database-related queries. Create test code to validate the application against client requirements. Monitor the performance of web applications & infrastructure, Troubleshooting web applications with a fast and accurate resolution.

A Full Stack Developer must know at least a few of these languages for backend development:
PHP – One of the most popular choices for backend development, PHP is an open-source, cross-platform compatible language that can work seamlessly on Unix, macOS, and Windows.
Python – Python’s English-like syntax, smooth learning curve, and vast assortment of libraries and frameworks are what make it extremely popular among developers and coders around the world.
Ruby – Ruby is a robust programming language. An active community of developers backs it, but it also boasts of excellent documentation and dependencies, making it the ideal choice for backend development.
Java – Java is a multipurpose programming language. It can be used for web, desktop, and mobile application development. Plus, Java has a wide range of frameworks that further simplify the process of backend development.

Advantages of Full Stack Developer
The advantage of being a full stack web developer is:

  • You can master all the techniques involved in a development project.
  • You can make a prototype very rapidly.
  • You can provide help to all the team members.
  • You can reduce the cost of the project.
  • You can reduce the time used for team communication.
  • You can switch between front and back-end development based on requirements.
  • You can better understand all aspects of new and upcoming technologies.

What is the role of a full-stack developer?

Full-stack developers are computer programmers who are experts in front and back-end coding. Their primary role includes designing user interactions on websites, developing servers, and databases for website practicality, and coding for mobile platforms.

Full Stack Developer Skills You Need to Know:

HTML/CSS
Full Stack Developers need to work with HTML to define the structure of websites by using markup. they have to even be experts in CSS for effective presentation of the HTML components. Full Stack Developers should have intensive knowledge in each of those programming languages for making an interactive, intuitive, and interesting frontend for applications.

JavaScript
Full Stack Developers should have in-depth knowledge of JavaScript alongside its ideas and features like React and Angular. one in every of the most effective things concerning JavaScript is that it includes various useful features, as well as functions, prototypes, higher-order event delegation, and closure, that facilitate produce responsive websites.
It is also necessary for Full Stack Developers to upgrade their JavaScript knowledge as and once new frameworks, libraries, and tools are launched. excluding this, Full Stack Developers should know how to use DOM and JSON.

Git and GitHub
As for Full Stack Developers, git permits them to trace each minor modification done to the application codebase. They need to remember all the essential git commands and examples. Using git empowers Full Stack Developers to explore distinctive opportunities for security, productivity, and management knowledge of git permits Full Stack Developers to higher collaborate and collaborate with their fellow developers/programmers who are working on a similar project.

Backend languages
While we’ve covered the two most important frontend languages, HTML and CSS (along with JavaScript), the other crucial part of an application or software is that the backend. whereas backend development could be a whole totally different game, there are lots of programming languages to settle on from. Doing a full-stack internet development course can assist you to learn the specified languages necessary to become a full-stack developer.

Web architecture
Full Stack Developers need to recognize the core of the net design. Since their primary responsibility is to develop advanced software system applications from scratch, they need to know how to structure the code, categorize the files, structure the information in databases, and perform the required process tasks.

HTTP and REST
Both HTTP and REST serve two unique functions. HTTP is that the protocol used for facilitating communication with the consumer, whereas REST is an interface between systems using the HTTP protocol to assemble information or perform completely different operations (in varied formats) on the info. So, REST acts as sort of a translator between the frontend and also the backend.

Database storage
All web applications need a database where all the data will be stored. This is to ensure that developers can access the data later. Database storage calls for an experienced and skilled Full Stack Developer who knows relational databases and database storage inside-out. Full-stack developers must be adept in database management – they should be able to design, understand, and manipulate database queries. They must also know how to work with XML and JSON.

Basic design skills
As we’ve made it clear that a Full Stack Developer is concerned with frontend and backend, they must possess fundamental design skills. The knowledge of frontend design is crucial to make a website look attractive and appealing. A website with a neat and user-friendly design always wins the hearts of the users.
Thus, Full Stack Developers must know the basic design principles, including UI & UX design, prototypes, scalability, etc.

NPM
NPM is the package manager explicitly designed for Node.js. It aids in the installation of different packages. It also offers relevant solutions for various dependencies. NPM allows developers to place modules optimally to help the node to find them and manage the dependency conflicts accordingly. NPM is highly configurable, and thus, it can be used for many applications, including the development, publishing, discovery, and installation of node programs.

Soft skills
When you aspire to become a Full Stack Developer, technical skills solely won’t suffice. You must possess the perfect balance of technical knowledge and soft skills. Every Full Stack Developer must have the following soft skills:
1. An analytical bent of mind
2. Good time management skills
3. Curiosity for learning
4. Attention to detail
6. Creative vision
7. Patience

Full Stack Developer Responsibilities:

  • Developing front-end website architecture.
  • Designing user interactions on web pages.
  • Developing back-end website applications.
  • Creating servers and databases for functionality.
  • Ensuring cross-platform optimization for mobile phones.
  • Ensuring responsiveness of applications.
  • Working alongside graphic designers for web design features.
  • Seeing through a project from conception to finished product.
  • Designing and developing APIs.
  • Meeting both technical and consumer needs.
  • Staying abreast of developments in web applications and programming languages.

Trending Frameworks of Full Stack Developer:

ANGULAR
Angular is a front-end framework based on Javascript. It is developed and maintained by Google. Its objective is to simplify the development and testing of Single-page applications.

  • It provides a framework for MVC and MVVM architectures. It was developed to solve issues faced in single-page applications.
  • Angular is the front-end part of the MEAN stack. This framework adapts and extends HTML and its attributes. It follows the declarative programming paradigm. AngularJS has separate DOm manipulation and app logic.
  • Similarly, it has separate client-side and server-side codings. This improves the efficiency and reduces time. The development of the front-end and back-end can be done in parallel. Both sides can also be reused.
  • It is slow to render in since it checks all the variables under the scope for every cycle. It is also not very lightweight in terms of size compared to other frameworks.

METEOR
MeteorJS is a web framework written based on javascript. It is written using node.js. It is open-source and free. It can use its template engine Blaze or can be integrated with react and angular for client-end operations.

  • It automatically sends data to clients without expressly writing codes for it. This is possible using the publish-subscribe pattern. Initially released in 2011 as sky break, it was renamed Meteor.
  • Meteor has taken over multiple other technologies like FathomDB, Galaxy – a cloud-based hosting environment. They provide an integrated solution for these with Meteor. It can also be integrated with MongoDB, NPM, and other web development tools.
  • The integrated javascript stack ensures less coding and more features. It can be used for developing various platforms for the web, iOS, Android, and laptops. It is useful for building web chat platforms and interactive websites.

DJANGO
Django is an open-source web framework written in Python [Python programming is the most in-demand and a high-level coding language used in web development]. It has MTV architecture. It is developed and maintained by the Django software foundation. It simplifies the creation of complex websites which are data-driven.

  • It also consists of a lightweight web server, which can be used for development and testing.
  • It also has a template system, a caching framework, an internal dispatcher system, and an internalization and serialization system. It has a system to enhance the template engine as well. it also has an interface to the built-in unit test framework.
  • Django can be run with Apache, Nginx, Cherokee, etc. It also supports backends like Postgres, MySQL, SQLite, and Oracle.
  • Django is also bundled with other systems and frameworks that make it a complete package. These include an authentication system, a dynamic administrative system, tooling to generate Google sitemaps, and a framework to create GIS applications.

RAILS
Also known as Ruby on Rails, Rails is a back-end web app framework. It is based on the language Ruby. It has an MVC architecture. It additionally facilitates the usage of HTML, JS, and CSS to create a user interface. It emphasizes Convention over Configuration (CoC) and Doesn’t Repeat Yourself (DRY) patterns. It was initially released in 2005.

  • Rails brought about a defining change in features and innovation. It allowed easy migration and the creation of database tables. This led to fast application development. Rails support ‘less code and less repetition’.
  • Rails are not connected to the internet directly. It uses a front-end webserver to connect to the internet. It can be run with Nginx, Apache, and Cherokee, etc.
  • It has an in-built package manager RubyGems. It is mostly paired with a MySQL or Postgres database. It is good for building scalable web applications and websites. It has influenced many frameworks, some of which are also on this list.

NODE
Node.js is a powerful back-end framework based on javascript. It is built on the javascript V8 engine. It is open source and a very popular framework for server-side coding. It can be run in NodeJS runtime on Windows, Mac OS, and Linux. It is the back-end of the MEAN stack.

  • Node uses an event-driven, non-blocking I/O model. This makes the framework lightweight and efficient. It is highly scalable. It has an in-built default package manager called NPM. This reduces the time is taken and lines of code that need to be written.
  • It provides services to a much larger number of requests than traditional servers like Apache. These applications do not buffer any data and output data in chunks.
  • The knowledge of javascript is a prerequisite to learn and use NodeJS. Other technologies like HTML, CSS, AJAX are value-addition.

ANDROID SDK
Android SDK or the software development kit is a framework to develop an application for Android devices. It consists of libraries, application program interfaces, and sample codes along with a debugger.

  • SDK Android is compatible with other Operating Systems like Windows, Mac OS, and Linux. It is generally used to write programs by using an integrated development environment (IDE). Eclipse with an ADT plug-in is a popular choice.
  • It can also be coded in the command prompt. The IDEs graphical interface makes development easy and fast.
  • Java is the programming language used to write mobile applications. This requires Java Development Kit (JDK). The SDK also comes with an Android emulator. Android development is becoming easier gradually due to the continuous development of the SDK.

REACT
React is a front-end library used to create UI. It was developed by Facebook. It is based on Javascript and is used for handling the view layer for web applications. You need to be adept with Javascript, HTML, and CSS while working on React. React does not use HTML, but you still should learn it as it will help with JSX which is similar to it.

  • React is used to create reusable UI components, which are a great advantage. It reduces the time taken to code from scratch. It saves a lot of effort and resources.
  • The use of virtual DOM is the biggest advantage of React. Javascript virtual DOM is fast, and thus the performance is high. React can also be used on the server-side with node.
  • The components model of React ensures the readability of the code. This makes it easy for large apps to be built and modified.

SPRING
Spring is an application framework. It is written in Java. It is an inversion of the control container for the Java platform. It provides a consistent method of managing Java objects.

  • The framework does not impose any particular programming model. It is an open-source framework and is free. It is known as the framework of frameworks.
  • It has multiple frameworks like an MVC framework, remote access framework, data access frameworks, transaction management framework, etc. MVC or a model-view-controller framework is one of the most popular frameworks used for creating scalable projects.
  • Spring also has its own convention over configuration design paradigm solution for spring framework for rapid application development.
  • It is developed and maintained by Pivotal Software. You can also use spring to build applications on top of the Java enterprise edition platform.

SYMFONY
Symfony is a web development framework based on PHP. It is now developed and maintained by the Symfony community. It has a set of PHP libraries and reusable components.

  • It is free. It can operate cross-platform on Windows, Mac OS, and Linux. Symfony is used to build robust applications.
  • It gives full control of the configuration to developers. A lot of features can be customized. Symfony uses a bytecode cache, which improves its performance.
  • It replaces repetitive tasks. Symfony can be used to code efficiently and is fast to create and maintain a website. It has a set of in-built free components that can be used for other projects like templating engine, a parser, an event dispatcher, etc.
  • Additionally, it also uses PHP-based open-source projects like unit testing framework PHPUnit and templating engine twig and swift- the email library. It is heavily influenced by the spring framework.

Scope of Full Stack Developer:

These days, full-stack development is in huge demand. corporations wish full-stack developers as a result for a variety of reasons. Full-stack developers will work with a variety of technologies, and so, they’ll manage further aspects of a project than a median computer programmer.

They minimize prices for companies as a result of they’re going to do the work of the many specialists alone. A full-stack developer is familiar with several stacks, besides the MEAN stack and also the LAMP stack. Their huge knowledge of a variety of areas equips them to handle the distinctive requirements of their projects. Firms are prepared to pay good-looking salaries to full-stack developers as a result of their unique talent sets and abilities.

Conclusion

You will need to have seen however terrific the prospects are for full-stack developers. As companies are relying additional and additional on technology and therefore the internet, the demand for such specialists is rising. The entire stack developer’s future scope is doubtless sensible, and it’s an honest time for anybody to learn this ability.

To wanna know more about Full Stack Developer Please click.

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Everything you need to know about Grafana

by uttam.GrafanaLeave a Comment on Everything you need to know about Grafana

What is Grafana?

Grafana is multi-platform open-source analytics and interactive visualization internet application. It provides charts, graphs, and alerts for the online once connected to supported knowledge sources.

Why is Grafana important?

Grafana shows groups and corporations what their users very do, not simply what they are saying they are doing. These square measures are called discovered behaviors, and they are extremely telling. Users aren’t terribly adept at predicting their own futures and having analytics permits technical school groups to dig deeper than human-error-prone surveys and watching.

How does Grafana work?

A Grafana dashboard supports multiple panels in a passing single grid, you may visualize results from multiple data sources at an equivalent time. It’s a strong open source analytical and visual image tool that consists of multiple individual panels organized in an exceeding grid.

Benefits of Grafana:

  • Grafana Cloud Traces.
  • Grafana Cloud Metrics.
  • Superfast Prometheus- and Grefait- compatible backend.
  • Grafana Cloud Dashboards. Dedicated Grafana front-end with enhanced reporting, security, management, and more.
  • Grafana Cloud Logs. Based on Grafana Loki, extreme scale, efficiency, and speed.

Where is Grafana used?

Companies use Grafana to observe their infrastructure and log analytics, preponderantly to enhance their operational potency. Dashboards build trailing users and events straightforward as a result of it automates the gathering, management, and viewing of knowledge.

What features does Grafana provide?

The tools that groups really used to uncover insights vary from organization to organization. The following area unit the foremost common (and useful) choices they might expect of data analytics/the visual image tools like Grafana.

Common Grafana features:

  • Visualize: Grafana has a plethora of visualization options to help you understand your data from graphs to histograms, you have it all.
  • Alerts: Grafana lets you define thresholds visually, and get notified via Slack, PagerDuty, and more
  • Unify: You can bring your data together to get better context. Grafana supports dozens of databases, natively.
  • Open-Source: It’s completely open-source. You can use Grafana Cloud, or easily install it on any platform.
  • Explore Logs: Using label filters you can quickly filter and search through the laundry list of logs.
  • Display dashboards: Visualize data with templated or custom reports. Create and share reports.
  • Create and Share reports: Create and share reports with your customers and stakeholders. This feature is not available in the open-source version.

Why do companies use Grafana?

Companies use Grafana to watch their infrastructure and log analytics, preponderantly to boost their operational potency. Dashboards build chase users and events straightforward as a result of it automates the gathering, management, and viewing of knowledge. Product leaders, security analysts, and developers use this knowledge to guide their selections. Studies show that corporations that consider information analytics and mental image tools like the Grafana the area unit are way more profitable than their peers.

Learning Objectives

  • Explore metrics and logs
  • Build dashboards
  • Annotate dashboards
  • Set up alerts

Intended Audience

Centralize the analysis, visualization, and alerting for all of your data with Grafana. Install, administer, and maintain your own instance

Prerequisites

Grafana requires a database to store its configuration data, such as users, data sources, and dashboards…

  • MySQL.
  • PostgreSQL
  • SQLite.
  • Supported databases

Conclusion

Grafana permits groups across Stack Overflow to quickly and simply build the custom self-service dashboards for what is vital to them, regardless of wherever the info lives or that info it’s holding on to.

If you want to learn relating to this course, I would suggest you visit DevOpsSchool.com.

Thank you!

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How to Become an Android App Developer?

by Manish KumarANDROID / App / Web ServersLeave a Comment on How to Become an Android App Developer?

Android is an open-source operating system, based on the Linux kernel and used in mobile devices like smartphones, tablets, etc. Various applications like games, music player, camera, etc. are built for these smartphones for running on Android. Google Play Store features quite 3.3 million apps.

You must admit that learning Android app development isn’t easy as it look. For the non-programmer there are several steps in the process, and even experienced programmers have quite a bit to learn when adopting Android. If you’re interested in developing new and innovative applications for the world’s #1 mobile platform – here are my six steps to becoming an Android app developer.

Now the questions arise are, Why Android? How to start? Where to start? And many more Question like this. So in this particular blog we will discuss in all this topics and I will try best to answer them all. Let’s start-

Who is an Android App Developer?

An Android App Developer is a Software Developer expertise in designing applications for the Android for mobile platform. This is the only competitor to Apple’s app store. Their job revolves around creating the apps we use on our smartphones and tablets. It is a skilled, entry-level position.

According to the recent studies, demand for Software Developers, which includes Android Developers, is expected to rise a whopping 21 percent through 2024. As an Android developer, you need to be very clear with your job posting and your responsibilities. So, here are some key roles and responsibilities of an Android Developer, that define who can be a successful developer.

These roles and responsibilities define who can be a successful developer.

There are several of specific tasks that an Android app Developer execute to develop Android applications. There are some of the following duties of Android app Developer-

Design and Build Advanced Applications for the Android Platform

In this an Android Developer dedicates most of their time. This development includes of using C / C++, JavaScript and a few other tools to write program code. It requires extreme attention, because one mistyped line of code can spoil the whole program.

Collaborate with Cross-Functional Teams to Define, Design and Ship New Features

An Android App Developer works with Product Development, User Experience and several other departments to define and design new features that users actually want.

Troubleshoot and Fix Bugs in New and as well as on Existing Applications

An Android App Developer’s job isn’t done after an application is completed. In fact they are also responsible for troubleshooting bugs that arise when the app is shipped to users in near future.

Continuously Discover, Evaluate and Implement New Development Tools

Android App Developers have to be up to date by latest trends in mobile application. They have to discover new tools as they hit the market. This requires the ability to adapt to an ever-changing environment.

Work With Outside Data Sources and APIs

An Android App developer spends so much amount of time working with outside data sources and APIs that provided.

How to become an Android App Developer?

Android App Developers can follow an easy pathway to become a successful Android App Developer as they already have an idea about how the applications work.  However, If you are someone, want to start your journey towards becoming an Android App Developer and really gain an advantage in the job market, then start working on these advanced skills many employers prefer in their Android App Developers career-

  • Should have strong knowledge of Android SDK and different versions of Android.
  • Proficient in programming languages like Java/Kotlin.
  • Strong knowledge of Android UI design principles, patterns, and best practices.
  • Decent knowledge with SQL.
  • Proficient understanding of code versioning tools, such as Git.
  • Familiarity with RESTful APIs that connects Android applications to back-end services.
  • Experience working with offline storage, threading, and performance tuning.
  • Possess the ability to design applications around UI such as touch.
  • Ability to understand business requirements and translate them into technical requirements.
  • Familiarity with cloud message APIs and push notifications.
  • Understanding of Google’s Android design principles and interface guidelines.
  • Familiarity with continuous integration.

At last, mastering these skills will definitely help you grow as a successful Android App Developer. And also do note that Android is one such domain where jobs are never out of stock. So start now to be an amazing developer.

Job roles

  • Mobile App Developer
  • Android Engineer
  • Mobile Architect
  • Embedded Software Engineer – Mobile
  • Lead Software Engineer- Mobile
  • Android Developer
  • Android Engineer
  • Mobile Developer

Why you should choose Android App Developer as a Career?

There are so many reasons why you should go for Android Development. Some notable ones among them are listed below:

Salary

According to the recent studies, the national avg. salary for Software Developers, which includes Android Developers, is $109,300. Those in the bottom 10 percent make less than $57,300, while those in the top 10 percent make more than $183,700. The three states with the highest median salary for Android Developers are California at $128,700, Washington at $123,400 and Massachusetts at $113,600.

Android is an evolving platform

Applications that are created are gaining lot of popularity and are rated top on the Google play store. With the time, Google keeps changing certain functionalities and releasing the new versions. So, you get updates yourself on a regular basis to improvised features that are added to your application. This is also a challenging task to develop, something that can catch the eye of any user.

Easy to learn

The developers out there will definitely feel that the time invested in learning how to develop an Android application is comparatively less than what they invest in other technologies. Have the knowledge of Java and scripting languages like Perl, PHP, and the job is done.

Conclusion

By learning Android development in 2021, you open up for many career opportunities such as freelancing, becoming an indie developer, or working for high profile companies like Google, Amazon, Facebook and more. The demand for native Android developers is still very high, and learning Android development has never been easier thanks to increases in online learning materials. Choosing Android App Developer as Career is a good option in 2021, If you want to learn or want to become an Android App Developer than I would like to suggest you DevOpsscool, One of the best option for this course, provide you best learning experience with in-hand practices, Experts are there to solve your query. Don’t wait for the right time to come, Start your learning today.

I Hope this blog is helpful for you and enough knowledge of Android App Developer.

Thank you!!

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Types of Builds: Developers and Project

by scmgalaxy KBuild ManagementLeave a Comment on Types of Builds: Developers and Project

I like to say that there are really only two types of builds: ones that work and ones that don’t. Seriously, though, when you’re shipping a product, you should consider these two different types of builds:

  • Developers’ (local machine builds)— These types of builds often happen within an editor such as Visual Studio, Emaqs, Slick, or VI. Usually, this is a fast compile/link of code that the developer is currently working on.
  • Project (central build process)— This type of build typically involves several components of an application, product, or a large project, such as Windows, or in some cases several projects included in a product, such as Microsoft Office.

The developer’s build process should be optimized for speed, but the project build process should be optimized for debugging and releases. I am talking about optimizing the process, not compiler or linker optimization switches. Although speed and debugging are important to everyone who is writing code, you must design a project build process to track build breaks and the offender(s) as quickly as possible because numerous people are waiting for a build to be released. For a developer, what seems to be most important is clicking some type of Build and Run button to make sure the code compiles without errors and then checking it in. For the build team, building without errors and having the ability to track down the person who broke the build is the most important thing.

 

Reference: The Build Master: Microsoft’s Software Configuration Management Best Practices

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Top 5 Virtualization tools for Developers | List of Virtualization tools | scmGalaxy

by scmgalaxy KVirtualizationLeave a Comment on Top 5 Virtualization tools for Developers | List of Virtualization tools | scmGalaxy

top-5-virtualization-tools

Software developers are busier now than ever before. They want to do more work in less time with quality. But, as we all know it’s not possible without right set of tools in your arsenal. So, it’s always good to find tools that can make work faster and make you more productive. Today we are going to talk on Virtualization tools. In this article I’m going to share a list of top 5 virtualization tool which will definitely help developers to improve their productivity and allow them to build better applications faster.

But, before that let’s have Quick introduction to Virtualization

Virtualization is a process in which, with the help of tools you can create a virtual version of resources like memory, operating system , server or networks instead of deploying the actual resource. In simple words you can understand it like this way: Virtualization let you run or operate a single computer into multiple ones. It let you run a Mac OS on Linux or Windows system in a single computer simultaneously. The Windows, Mac, Linux, or other system running in the virtual machine acts exactly as if it were running on real hardware. The same thing apply with storage, server or networks.

Basically Virtualization tools are used for server consolidation. But they are useful for software developers for writing or testing software.

If we look on to the benefits than these are the major benefits of Virtualization.

  1. Lessen the number of Hardware Resources
  2. 80% server use possible
  3. Cut IT costs
  4. consolidated hardware to achieve higher productivity from fewer servers
  5. multiple operating systems and applications on a single computer
  6. simple IT infrastructure with low upkeep
  7. Quickly deployment of new applications

So, Now without any further ado lets check out the Top 5 tools and their features.

1. Vagrant

Vagrant is an open source virtualization tool which developed by Hashicorp and written in Ruby. But, it’s support projects written in other languages too, like as Java, javascript, C#, Python and PHP. It’s work on platforms Linux, FreeBSD, macOS, and Microsoft Windows.

Features:

  • Open Source
  • Cross Platform: Linux, FreeBSD, macOS, and Microsoft Windows essential
  • Natively supports Docker containers
  • Can work with Puppet & Chef
  • Users can share running environment via Internet

 

2. VirtualBox

VirtualBox is also an open source virtualization tool which is developed by originally by Innotek GmbH and now being developed by Oracle Corporation. This virtualization tool is written in C, C++, x86 Assembly. It is one of the oldest tool in the industry which is used by developers.
Features:
  • Open Source
  • Virtualization Type: Hardware Assisted Virtualization & Paravirtualization
  • Cross Platform: Windows, macOS, Linux and Solaris
  • Easy to install and use-friendly
  • Video capture support
  • VirtualBox adds support for touchscreens

3. VMware

 

VMware is a veteran in the software industry which is developed by VMware Inc. and comes in 3 different packages by name VMware Workstation, VMware Fusion and VMware workstation Player in which player comes free for users who are looking to run virtual machines on their Windows or Linux systems. The first one is good option which is designed for professionals and the second one is for home users who simply wants to run windows on MAC. VMWare products are mostly written in c, C++ and assembly but different different languages are used in various other bits.
Features:
  • Free and Paid
  • Cross Platform: Windows, Linux and Mac OSX
  • Comes in three packages
  • Virtualization Type: Full Virtualization, Hardware Assisted Virtualization & Paravirtualization
  • Easy to use
  • Quick Installation

4. Xen

 


Xen is initially developed by University of Cambridge but now it’s belongs to Linux Foundation. Xen runs on Linux and Unix. Xen is included with most popular Linux platforms like Fedora, RHEL, CentOS, Ubuntu, and Debian.
Features:
  • Open Source
  • Platform: Linux/Unix
  • Virtualization Type: Paravirtualization & Hardware Assisted Virtualization
  • Guest Os: Windows Server 2003, Windows XP and Windows 2000
  • Also supports Red Hat, SUSE and Debian Linux guest OS.

5. KVM

Kernel-based Virtual Machine (KVM) is also an open source intended for personal and small-medium business solutions. It’s originally developed by Qumranet and now belongs to Red Hat. KVM is written in C and it;s suitable for Linux. If you need or looking for command line interface virtualization tool which comes with updated solutions, boundless use mode and without extra features and permitting charges than this is the right tool you can have.
Features:
  • Open Source
  • Platform: Linux
  • Virtualization type: Full Virtualization, Hardware Assisted Virtualization and Paravirtualization
  • Powerful command line interface
So, This is my list of Top 5 virtualization tools. Now, what you think about my list or if you are not agree with my selected tools or if you think this list should contain some other Virtualization tools instead of this, than write in comment section below.
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How CVS will help to Realtime Developers ?

by scmgalaxy KCVSLeave a Comment on How CVS will help to Realtime Developers ?

CVS Tips & Tricks

The CVS commands here assume that you are using the command line version of CVS. Tips and tricks for a specific CVS GUI are specific to each GUI and do not really belong here.

Viewing the commit log of a file.

$ cvs log filename

Show current status of a file.

The status command will show you the latest version, the version in your working directory and if your local copy has been modified.

$ cvs status filename

Performing a CVS diff

After developers have checked in updates to the code it may be beneficial to see what has changed, either to help solve bugs or to track changes. There are several option to do this.

  1. Perform a diff between complete branches:
$ cvs -q diff -u -r BRANCH1 -r BRANCH2
  1. Perform a diff between a single file in two branches:
$ cvs -q diff -u -r BRANCH1 -r BRANCH2 filename
  1. Perform a diff between different versions of a file:
$ cvs -q diff -u -r version1 -r version2 filename
  1. Perform a diff between working version and most up to date file in database:
$ cvs -q diff -u filename
  1. Perform a diff between working version and a specific database version:
$ cvs -q diff -u -r version filename

Retrieving CVS Information on Files

To retrieve the current version and other relevant information about a file run:

$ cvs status filename

To retrieve the entire change log pertaining to a file run:

$ cvs log filename

Retrieving CVS Files Based Upon Revision

To retrieve a file from CVS based upon a revision number perform the following:

$ cvs -q up -Pd -r revision filename
  • To get the revision number use the log command above

Tag file in CVS as a Release

To tag files in CVS as a release perform the following:

$ cvs tag
  • Run the command from within the release source dir.

Creating a Branch

I like to do the following before creating a branch:

See what tags are available and pick one.

$ cvs -q log filename

Revert to a tagged version of HEAD.

$ cvs -q up -r TAG_Version

To create a branch in CVS perform the following:

$ cvs tag -b

Run the command from within the release source dir. This should be done in the top level directory of the project. The chosen_branch is something like BRANCH_36_BUG_.

cvs -q up -r
$ cvs -q status <– confirm that the branch has specified as the tag
$ cvs tag _mm_day_year <– eg: BRANCH_12_BUG_12345_07_17_2009

Reverting to a Branch

To revert to a branch in CVS perform the following:

$ cvs -q up –r
  • Run the command from within the release source dir. This should be done in the top level directory of the project. The chosen_branch is something like BRANCH_BUG_.

Verifying you are in a branch

To verify you are in a branch

$ cvs -q status

You will see that the branch is a sticky tag.

Merge Current Branch with HEAD

Ensure that you are in the branch by reverting to the branch and Verifying that you are in the branch.

$ cvs update -j

This will ensure that you are your branch is getting merged properly with HEAD so the only differences you see between your branch and the are changes that you made. You can verify this from your branch with:

$ cvs -q diff -u -r | less

You will eventually have to commit your changes you should always do a tag on the branch after your commit.

$ cvs tag

Merge HEAD into Current Branch Multiple Times (with tags) and without -kk option

$ cvs update -j -j

This command will unfortunenately result in a lot of your ID tags getting changed at the top. Using the –kk option will avoid this problem. But then you won’t see which files have changed and You won’t know who last modified a file easily. After you run this command I recommend:

$ vim `cvs up -d | grep '^C' | sed -e 's/^C //'`

You may find the following page interesting as well: http://kb.wisc.edu/middleware/page.php?id=4087

This will grab all of the conflicting files. You can save them with :w. And step through them with :bn. You can easily close them all with :wq!.

Merge HEAD into Current Branch Multiple Times (with tags)

To merge current HEAD into a branch that has already had HEAD merged into it once, the differences between that last merge and current HEAD need to be gathered and applied to the branch. This is done by finding out when the last time HEAD was merged with the branch. Hopefully you tagged your branch. Repeat steps 1 and 2 from the previous section to create a tag for HEAD and to create a tag for your branch so you can have a backup/reference point. Then, perform the following if you have tagged the branch when merging the last time:

$ cvs update -kk -j -j
  • Run the command from within the branched version. is the old tag in HEAD from the last time you merged (the tag that you created in Step one from the previous section). If you in this case, the format will likely be the following:
$ cvs update -kk -j UPDATE_HEAD_36_BUG__06_16_2008 -j UPDATE_HEAD_36_BUG__07_23_2008

The first tag is the one created the last time HEAD was merged into the branch. The second tag is one that should have been just created. This will take all the differences between the two tags, and bring them into the branch. The next time a merge from HEAD into the branch occurs, this latest tag will be the “old” tag, and the new tag will be created at the time of the merge.

The reason for tagging the branch before a join/merge like this is to create a reference point to revert to if the need ever arises. The -kk option removes rcsid tags so that the cvs tag at the top doesn’t get flagged as a conflict on every merge/join.

Merge HEAD into Current Branch Multiple Times (without tags)

If no tags have been created for the branch when HEAD was merged into a branch at a previous time, an alternative is to use the daily build tag. Find the commit message of the last time HEAD was merged into the branch and was committed and select the daily build tag the day BEFORE that one (but only if the commit was before the daily build that day, i.e. before lunch time for GMT -06:00). An example is provided below on how to merge without tagging:

$ cvs update -kk -j Tag_Branch -j HEAD>

Run the command from within the branched version.

———————————-
To Avoide network confusion :-

use :- alias cvs=`cvs -z9`

causes cvs to use compression level 6.

Good links for it:-

Tagged : / / / / / / / / /

How CVS will help to Realtime Developers ?

by scmgalaxy KCVSLeave a Comment on How CVS will help to Realtime Developers ?

how-cvs-will-help-to-realtime-developers

CVS Tips & Tricks

The CVS commands here assume that you are using the command line version of CVS. Tips and tricks for a specific CVS GUI are specific to each GUI and do not really belong here.

Viewing the commit log of a file.

$ cvs log filename

Show current status of a file.

The status command will show you the latest version, the version in your working directory and if your local copy has been modified.

$ cvs status filename

Performing a CVS diff

After developers have checked in updates to the code it may be beneficial to see what has changed, either to help solve bugs or to track changes. There are several option to do this.

  1. Perform a diff between complete branches:
$ cvs -q diff -u -r BRANCH1 -r BRANCH2
  1. Perform a diff between a single file in two branches:
$ cvs -q diff -u -r BRANCH1 -r BRANCH2 filename
  1. Perform a diff between different versions of a file:
$ cvs -q diff -u -r version1 -r version2 filename
  1. Perform a diff between working version and most up to date file in database:
$ cvs -q diff -u filename
  1. Perform a diff between working version and a specific database version:
$ cvs -q diff -u -r version filename

Retrieving CVS Information on Files

To retrieve the current version and other relevant information about a file run:

$ cvs status filename

To retrieve the entire change log pertaining to a file run:

$ cvs log filename

Retrieving CVS Files Based Upon Revision

To retrieve a file from CVS based upon a revision number perform the following:

$ cvs -q up -Pd -r revision filename
  • To get the revision number use the log command above

Tag file in CVS as a Release

To tag files in CVS as a release perform the following:

$ cvs tag
  • Run the command from within the release source dir.

Creating a Branch

I like to do the following before creating a branch:

See what tags are available and pick one.

$ cvs -q log filename

Revert to a tagged version of HEAD.

$ cvs -q up -r TAG_Version

To create a branch in CVS perform the following:

$ cvs tag -b

Run the command from within the release source dir. This should be done in the top level directory of the project. The chosen_branch is something like BRANCH_36_BUG_.

cvs -q up -r
$ cvs -q status <– confirm that the branch has specified as the tag
$ cvs tag _mm_day_year <– eg: BRANCH_12_BUG_12345_07_17_2009

Reverting to a Branch

To revert to a branch in CVS perform the following:

$ cvs -q up –r
  • Run the command from within the release source dir. This should be done in the top level directory of the project. The chosen_branch is something like BRANCH_BUG_.

Verifying you are in a branch

To verify you are in a branch

$ cvs -q status

You will see that the branch is a sticky tag.

Merge Current Branch with HEAD

Ensure that you are in the branch by reverting to the branch and Verifying that you are in the branch.

$ cvs update -j

This will ensure that you are your branch is getting merged properly with HEAD so the only differences you see between your branch and the are changes that you made. You can verify this from your branch with:

$ cvs -q diff -u -r | less

You will eventually have to commit your changes you should always do a tag on the branch after your commit.

$ cvs tag

Merge HEAD into Current Branch Multiple Times (with tags) and without -kk option

$ cvs update -j -j

This command will unfortunenately result in a lot of your ID tags getting changed at the top. Using the –kk option will avoid this problem. But then you won’t see which files have changed and You won’t know who last modified a file easily. After you run this command I recommend:

$ vim `cvs up -d | grep '^C' | sed -e 's/^C //'`

You may find the following page interesting as well: http://kb.wisc.edu/middleware/page.php?id=4087

This will grab all of the conflicting files. You can save them with :w. And step through them with :bn. You can easily close them all with :wq!.

Merge HEAD into Current Branch Multiple Times (with tags)

To merge current HEAD into a branch that has already had HEAD merged into it once, the differences between that last merge and current HEAD need to be gathered and applied to the branch. This is done by finding out when the last time HEAD was merged with the branch. Hopefully you tagged your branch. Repeat steps 1 and 2 from the previous section to create a tag for HEAD and to create a tag for your branch so you can have a backup/reference point. Then, perform the following if you have tagged the branch when merging the last time:

$ cvs update -kk -j -j
  • Run the command from within the branched version. is the old tag in HEAD from the last time you merged (the tag that you created in Step one from the previous section). If you in this case, the format will likely be the following:
$ cvs update -kk -j UPDATE_HEAD_36_BUG__06_16_2008 -j UPDATE_HEAD_36_BUG__07_23_2008

The first tag is the one created the last time HEAD was merged into the branch. The second tag is one that should have been just created. This will take all the differences between the two tags, and bring them into the branch. The next time a merge from HEAD into the branch occurs, this latest tag will be the “old” tag, and the new tag will be created at the time of the merge.

The reason for tagging the branch before a join/merge like this is to create a reference point to revert to if the need ever arises. The -kk option removes rcsid tags so that the cvs tag at the top doesn’t get flagged as a conflict on every merge/join.

Merge HEAD into Current Branch Multiple Times (without tags)

If no tags have been created for the branch when HEAD was merged into a branch at a previous time, an alternative is to use the daily build tag. Find the commit message of the last time HEAD was merged into the branch and was committed and select the daily build tag the day BEFORE that one (but only if the commit was before the daily build that day, i.e. before lunch time for GMT -06:00). An example is provided below on how to merge without tagging:

$ cvs update -kk -j Tag_Branch -j HEAD>

Run the command from within the branched version.

———————————-
To Avoide network confusion :-

use :- alias cvs=`cvs -z9`

causes cvs to use compression level 6.

Good links for it:-

  • http://datagrams.blogspot.com/2009/01/how-to-deploy-cvs-concurrent-versions.html
  • http://kb.wisc.edu/middleware/page.php?id=4087
  • http://ximbiot.com/cvs/manual/cvs-1.11.21/cvs_10.html#SEC85
  • http://ximbiot.com/cvs/wiki/Special/Index
  • More Help!!

Refer for more on This:-

          Click Me!!

Thanks,

-Amaresh Das

Tagged : / / / / / / / / / / / /